-Chase Dehart signature model: 100% butted and heat-treated Sanko chromoly tubing, externally machined internal headset headtube with removable gyro tabs, Mid bottom bracket shell, small 14mm dropouts, integrated post clamp, gussetted down tube/head tube junction and wide set chainstays allow for the use of larger diameter tires. Mid BB kit and internal headset sold seperately. Weight: 4.8lbs..